Question

我有一个html模板。我想将其转换为pdf并分享。

当我这样做的时候......

let activityViewController:UIActivityViewController = UIActivityViewController(activityItems:  [self.appDelegate.HTMLContent], applicationActivities: nil)

self.present(activityViewController, animated: true, completion: nil)

然后分享的只是html代码。我想将html代码转换为pdf然后分享它。我该怎么做...？

Answer 1

使用以下方法将HTML字符串转换为A4大小的PDF数据格式：

myObjects

现在使用以下代码分享它：

func generatePDF(from html: String) -> NSData {

    let fmt = UIMarkupTextPrintFormatter(markupText: html)

    // 2. Assign print formatter to UIPrintPageRenderer
    let render = UIPrintPageRenderer()
    render.addPrintFormatter(fmt, startingAtPageAt: 0)

    // 3. Assign paperRect and printableRect
    let page = CGRect(x: 0, y: 0, width: 595.2, height: 841.8) // A4, 72 dpi
    let printableRect = CGRect(x: 47.6, y: 70.9, width: 500, height: 700) // Adding margin to page
    render.setValue(page, forKey: "paperRect")
    render.setValue(printableRect, forKey: "printableRect")

    // 4. Create PDF context and draw
    let pdfData = NSMutableData()
    UIGraphicsBeginPDFContextToData(pdfData, .zero, nil)

    for i in 0..<render.numberOfPages {
        UIGraphicsBeginPDFPage()
        render.drawPage(at: i, in: UIGraphicsGetPDFContextBounds())
    }

    UIGraphicsEndPDFContext()

    return pdfData
}

无法将html代码转换为pdf

1 个答案: